Section 2 · Pages 108–117 (10 pages)
Frame
From the 1966 GMC Truck Series 4000-6500 Service Manual
General instructions for checking frame alignment and for frame repair and reinforcement, with checking points and welding practice. Includes welding equipment notes, a warning against using oxyacetylene on high strength steel, electrode and plug weld charts, and frame width specifications.
Read this section free, starting at page 108What this section covers
- Checking frame alignment
- Repair and reinforcement rules
- Welding equipment and electrode usage
- Plug weld chart
- Frame specifications and widths
- Year
- 1966
- Make
- GMC
- Vehicle
- Medium Duty Trucks, Trucks
- Type
- Service Manual
- Models
- GMC Truck Series 4000 thru 6500, including L3500 (L, E, H, S, P series)
- Publication
- X-6733
- Pages
- 507
What’s inside
Service manual
- 0Lubricationpp. 8–25
- 1Cabs and Body Mountingspp. 26–107
- 2Framepp. 108–117
- 3AFront End Alignmentpp. 118–121
- 3BFront Axlepp. 122–125
- 3CFront Springs and Shock Absorberspp. 126–131
- 3DFront Hubs and Bearingspp. 132–135
- 4ARear Axle and Controlspp. 136–155
- 4BRear Springs and Suspensionpp. 156–159
- 4CRear Hubs and Bearingspp. 160–165
- 4DPropeller Shaftspp. 166–171
- 5AHydraulic Brakespp. 172–211
- 5BAir Brakespp. 212–257
- 5CParking Brakespp. 258–261
- 6AGasoline Enginespp. 262–287
- 6BToro-Flow Diesel Enginespp. 288–303
- 6DEngine MountingsCushion-type engine mountings: a single front mount on V6 engines and dual front mounts on in-line engines, with illustrations, cushion replacement and a mounting torque chart.pp. 304–305
- 6KEngine Cooling Systempp. 306–315
- 6MEngine Fuel Systempp. 316–367
- 6TAir Compressors and Governorspp. 368–375
- 6YEngine Electricalpp. 376–411
- 7ATransmission Control Linkage and On-Vehicle Servicepp. 412–421
- 7DClutch Controlspp. 422–429
- 7EClutchespp. 430–435
- 8AFuel Tank, Lines and Gauge SystemFuel tank mounting and straps, periodic inspection of tank and lines, tank unit replacement and a fuel gauge system trouble diagnosis chart.pp. 436–437
- 8BExhaust SystemExhaust system inspection for leaks, exhaust restriction and excessive back pressure, with a carbon monoxide warning for gasoline and diesel models.pp. 438–439
- 9AMechanical Steeringpp. 440–452
- 9BPower Steeringpp. 453–471
- 10Wheels and Tirespp. 472–477
- 11Sheet Metalpp. 478–481
- 12Chassis Electrical and Instrumentspp. 482–497
- 13Radiator and Surge Tankpp. 498–502







